Iwien - I think i get what you're saying: fresh bud minus the trychs dilutes the herb for vaping. A solution to that detractor can be to ONLY freeze the herb intended primarily for kief.

Kief, as we know, is a whole other level of experience that requires less and gives you more than herb alone in similar dose. However, the herb used needn't be discarded, as it hasn't been completely stripped bare. And, there are those times when just a mild effect from our vape is just what the doctor ordered. It's all good!

That's how I made my last batch of tincture, except I used grain alcohol.

Click to expand...

Yeah ISO should never be intentionally ingested. It's not like a drop of it will kill you, but large doses can definitely be lethal. This website says the lethal does of ISO is ~8 oz.

And as for the question in the OP, I personally see no point in separating the kief if your end goal is to vape it unprocessed. The only reason I'd do a dry sift is if I'm making hash and want to reduce the amount of starting material (this helps decrease solvent costs).

The freezer/coin method is fairly crude IMO; while it does work, it doesn't really create a quality product. You lose both potency and flavor from the ground weed and the extracted "kief". Since the weed is so brittle from the freezer, it's ends up getting crushed fine enough to fit through the screen and degrades the kief (turns it from gold to green).

A theoretical reason to separate keif in this fashion could be not just to physically separate, but to separate the spectrums. For example keif = trichromes = a more thc-dominant effect, compared to what is left which could provide a more cbd-dominant effect. So maybe the keif in daytime and the remaining bud at night.